21685336

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{317}}^1\times {\mathrm{503}}^1$

素因数の和:843

約数の個数: 32

約数和(自身を含む): 43273440

約数和(自身を除く): 21588104

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 317, 503, 634, 1006, 1268, 2012, 2536, 4024, 5389, 8551, 10778, 17102, 21556, 34204, 43112, 68408, 159451, 318902, 637804, 1275608, 2710667, 5421334, 10842668, 21685336]

約数ペア:

[(1, 21685336), (2, 10842668), (4, 5421334), (8, 2710667), (17, 1275608), (34, 637804), (68, 318902), (136, 159451), (317, 68408), (503, 43112), (634, 34204), (1006, 21556), (1268, 17102), (2012, 10778), (2536, 8551), (4024, 5389)]